Part A
Complete the following vocabulary exercise relating to the level of structure in proteins. Match the words In the left-hand column with the appropriate blank In the sentences In the right-hand column:
Primary
structure describes the alpha-helices and beta-sheets that are formed by hydrogen
Secondary
bonding between backbone atoms located near each other in the polypeptide chain;
Tertiary
structure is the sequence of amino acids in protein:
Quaternary
structure is the result of two or more protein subunits assembling to form larger;
biologically active protein complex:
structure achieved when protein folds into compact; three-dimensional shape
stabilized by interactions between side-chain R groups of amino acids